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> reflective of the quality. Two factors to consider is the quality of the
> glass, and the lens speed. Nikkor El lenses are great. A f/2 or f/2.8
> are expensive but a slower 3.5 lens is affordable and will project a
> image. On the Omega's we have, I bought Rodenstock 50mm f/2.8 lenses. I
> like the slightly faster lens because it makes focusing and composing the
> image easier to see because it is brighter. We generally print at f/11 or
> so the image quality is good. A couple of the enlargers we use Beslar
> lenses and they are good too.
> The school had two enlargers with color heads donated. A Besslar 23-c and
> Minolta. Yes, you can dial in filter combinations to match selective
> contrast filters but the newer papers that go to grade 5 won’t respond
> 4. Also, with each change of filtration, your exposure timings change. I
> much prefer using gel filters 00-5 which I buy from Photo warehouse for
> $10 per set. The exposure times are consistent though 3.5, and then
> for contrasts 4-5. Buy several sets, because the filters are easily
> They should be used above the condenser lenses so scratches, dust or other
> minor imperfections do not effect the focused light. Buy the size that
> your enlarger (Omega 3x3” Besslar 23-c 6x6”)
> Your enlarger should be place away from the wet side on the darkroom. Place
> on very sturdy and stiff table or counter about 36” high. Vibration from
> enlarger platform will make blurry prints. Have fun.
> What grade level do you teach?
> Bill R.
> Souhegan HS